package com.derry

fun main() {
    action0("lisi", 68)
    action1("lisi")
    action2()
}

private fun action0(name: String, age: Int) {
    println("我的名字是$name,我的年龄是$age")
}

private fun action1(name: String, age: Int = 99) {
    println("我的名字是$name,我的年龄是$age")
}

private fun action2(name: String = "wangwu", age: Int = 88) {
    println("my name is $name,my age is $age")
}